JP2007111851A - Manual shredder for thin small paper's exclusive use - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manual shredder for thin small paper's exclusive use which facilitates cutting of thin small paper such as highly confidential paper in order to protect personal information. <P>SOLUTION: The manual shredder for thin small paper's exclusive use is composed of a cover where a pair of blade bodies having a plurality of blades to be arrayed are stored, and a waste basket detachably provided on this cover. The blade bodies are pivotally supported on the cover with one rotary shaft so as to finely cut the paper charged from a cover slot by turning a lever connected with the blade bodies. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a manual paper shredder dedicated to thin paper, which facilitates shredding of thin paper, which is often used as highly confidential paper, in order to protect personal information.

Conventionally, shredders using two rotary blades with different rotation axes are mainstream, and the blades are rotated by an electric motor or a manual handle, and the inserted paper is chopped while being wound between the two rotary blades.
There are inventions related to portable hand shredders in which cutter blades are arranged side by side, pressed against paper, and slid sideways to be shredded (Patent Document 1, Patent Document 2, Patent Document 3).
JP 10-33846 A JP-A-9-266991 Registered Utility Model No. 3064012

These had the following problems.
(B) In the case of the rotary blade type, there is a risk that clothes, fingers, etc. will be caught.
(B) In the case of the rotating blade type, it was shredded slowly to prevent entrainment, and even thin paper that was easy to cut could not be shredded quickly on the spot, and there were times when it was a little annoying or annoying for long noises. .
(C) In the case of the rotary blade type, the insertion slot is narrow and difficult to insert in order to prevent entrainment, and twisted thin paper was sometimes arranged using both hands.
(D) In the case of the rotary blade type, it is shredded from the edge of the paper at the same time as it is inserted in a shallow place inside the insertion slot, so that the paper once catches at the entrance, and is rolled up and shredded and stored. During that time, he supported the paper with his hands and equipment and watched the situation.
(E) In the case of the rotary blade type, as described above, there is a psychological threshold for the shredding operation of thin paper that is easy to cut, and the shredding operation is performed collectively with confidential paper or without shredding. It was also one of the reasons why it was not possible to increase the chances of protecting personal information using shredder on the spot, such as being scattered, throwing away by hand, or unwrapping it unprotected.
(F) In the case of the rotary blade type, since insertion and shredding are performed at the same time, it is difficult to provide selectivity for functions other than shredding.
(G) In the case of the rotary blade type, even if foreign matter is mixed in, it is caught with a strong force, and the blade may be damaged.
(H) In the case of the electric rotary blade type, the main unit, electricity bill, silent design, entrainment safety circuit, etc. were expensive.
(Ii) In the case of the manual rotary blade type, although it is low cost, it is troublesome because it uses both hands and turns the handle many times.
(N) In the case of the manual rotary blade type, when it was going to be installed, the handle at a position different from the insertion port was obstructive and difficult to turn, making it difficult to install and use.
In the case of the cutter blade type, both hands are used to move back and forth many times, so the user's shredding technology and labor are required, and shredding chips are easily scattered.
The present invention has been made to solve these problems.

  A shredder comprising a cover containing a pair of blades in which a plurality of blades are arranged and a trash can detachably provided on the cover, wherein the blades are made of paper introduced from a cover slot. A manual shredder dedicated to thin paper, which is pivotally supported on the cover by a single rotating shaft so that a lever connected to the blade body can be rotated and shredded.

Since the blade is rotated and shredded like scissors, there is no concern about entrainment, and even if safety is ensured, the slot can be widened. It is possible to make a shredder with a more generous input. Because there is plenty of room, it is possible to easily load even small thin paper with one hand, and if it is an acceptable size paper, it can be stored in the interior without being replaced at the entrance before shredding. Eliminates the hassle of traditional support. The temporary storage property has an effect of freeing hands by separating the operation of cutting and shredding. After the insertion, it can be shredded quickly just by pushing the lever with one hand on the spot. For this reason, the noise is not too much of a concern, and it brings about an unprecedented ease and exhilaration. Furthermore, if it is fixed to a wall, desk, floor, etc., all operations can be performed with one hand. Moreover, since the slot and the lever are in the same area, there is a degree of freedom in installation and it is easy to install and use. In addition, since it is a manual type and has a simple structure, the manufacturing cost is not so high. For this reason, there is an effect that the shredding shredding of thin paper is promoted comprehensively and the opportunity to protect personal information is increased by in-situ shredding.
When multiple people use it in public places such as ATMs and offices, paper is thrown in more and more by people who misunderstand it as a trash can or when the shredding itself is troublesome. May accumulate and cause paper jams. However, if the lever is kept pressed after shredding, the input paper is not collected in the blade body but is directly discarded into the waste bin, and no paper jam occurs. In other words, only the person who wants to shred can return the lever and insert paper to shred. This produces the selectivity according to the position of the lever, which is whether the input paper is to be shredded or discarded, and has the effect of realizing one and two roles that did not exist in the conventional shredder. For this reason, it is not necessary to install both a trash can and a shredder in an ATM store or the like, the overall installation cost can be suppressed, and it is very effective in increasing the installation rate of the shredder. In addition, this one-and-two role has the effect of prompting in-situ cutting even if the dumping is intended, further reducing the psychological threshold of shredder use.
When foreign matter is mixed in, it can be immediately detected by adjusting the hand of the user, so that the blade is rarely damaged by applying an abnormal overload as in the prior art.

Hereinafter, embodiments of the present invention will be described.
(A) A straight, thin metal blade (1) with one edge sharpened face each other as a pair of scissors. The front blade (1) with the scissors open vertically is on the right and the back blade (1) is Cross on the left side.
(B) Arrange a plurality of scissors on a single metal rotating shaft (2) in a line at regular intervals using spacers (3) so that the axes are the same in direction and direction.
(C) The end of the rotating shaft (2) is fixed and secured to the side surface of the protective plastic cover (4), and its position is considered for ease of shredding and selectivity for dumping. Slightly rearward.
(D) All one side of the blade (1) is fixed to the vertical side surface of the cover (4), and the other blade (1) facing each other is connected to the lever (5).
(E) A wider inlet (6) is provided on the upper part of the cover (4) than the conventional one so as not to touch the blade (1) even if a finger is pushed.
(F) At the upper part of the cover (4), a lever groove (7) is provided in the movable range of the lever (5) at the center so as to be perpendicular to the insertion port (6).
(G) At the bottom of the cover (4), a removable plastic transparent container (8) is provided.
(H) The cover (4) and the waste bin (8) are fixed to a wall or the like by a fixing tool (9).
As described above, the present invention has a structure as shown in FIGS. 1 to 3, and when this is used, as shown in FIG. As shown in 4 (b), the lever (5) is pushed once with one hand and chopped. Shredded chips fall into the lower waste bin (8). After the shredding, as shown in FIG. 4 (c), if the lever (5) is left as it is, the loaded paper is directly dumped into the waste bin (8) without being shredded. Only when chopping is desired, the lever (5) is returned and the paper is loaded and chopped. Further, since the directions of the individual scissors are the same, the strip-shaped shredded pieces are easily slipped by receiving a moment force between the parallel blades (1) and are not easily clogged. Furthermore, since the blade (1) connected to the lever (5) is on the right side of the scissors, the shredding efficiency is improved when a right-handed person uses it.
It should be noted that if the structure that sufficiently secures the space between the blade (1) and the insertion port (6) is safe even if the finger is pushed in, the insertion port (6) can be widened, and at the same time, the lever (5) Because it can be made longer, the shredder load can be reduced by the lever principle.

  As shown in FIG. 5, if the rotating shaft (2a) is provided with a coil (spring), plate-like spring (10a) and the blade (1a) connected thereto is opened by a spring force, When using, it is convenient to use it exclusively for shredding because it saves the trouble of returning the lever (5a) after shredding.

  As shown in FIG. 6, instead of the conventional lid of the waste bin (8b), the cover with the blade body according to the present invention (4b) is changed to a lid so that it can be attached and detached for use. When using this, since the shredder can be installed using the conventional waste bin (8b) as it is, the introduction cost is reduced and it is convenient.

  Regarding the shape of blade (1) viewed from the side, as shown in Fig. 7 (a), the shape of the straight blade line can be changed to a sawtooth shape, zigzag shape, rectangular shape, wave shape, etc. (1c) are arranged alternately, the facing combination is changed, as shown in FIG. 7 (b), the blade (1d) warped outward is used, or as shown in FIG. 7 (c). The blade line of the blade (1e) approaches the inside of the blade body, and when this is used, the substantial scissor angle can be secured both at the root and the blade edge, so the efficiency of shredding is increased. There is.

  Instead of directly supporting both of the pair of blades by one rotating shaft (2), as shown in FIG. 8 (a), one blade (1f) is attached to the rotating shaft (2f) and the cover (4f). Supporting indirectly with a support plate (11f) connected to the other, or supporting one blade (1g) with a separate support shaft (12g) as shown in FIG. 8 (b) When the blades (1f, 1g) are configured to cross obliquely, when this is used, the scissor angle can be ensured up to the blade edge, which has the effect of increasing the shredding efficiency.

  As shown in FIG. 9, the blades (1h) are not aligned in a single line in the horizontal direction, and the arrangement of the blades as viewed from the blade edge side is appropriately shifted, zigzag, wavy, or given a gradient. When this is used, there is an effect that the shredding load is dispersed and the paper is pulled moderately.

  As shown in FIG. 10, the scissors made of the blade (1i) and the rotating shaft (2i) are not arranged in the same direction, but are arranged alternately and front and back. Left-handed, it has the effect of preventing the blade (1i) from being slightly distorted by the user and changing the sharpness. If the blades (1i) are arranged in an appropriate manner without being aligned in a single line as viewed from the blade edge side, the shredded chips receive a little moment force, so that clogging that is a concern can be prevented.

  As shown in FIG. 11, instead of using thin blades (1), thick blades (1j) that can be cut at the edges on both sides are arranged alternately with no gaps. There is an effect that it becomes easy to shred thick paper or a plurality of sheets of paper. Also, if the protruding state of the edge of the blade (1j) viewed from the blade edge side is appropriately shifted by both edges, the shredder load is dispersed, the paper is pulled moderately, and shredded chips receive moment force. There is an effect that clogging is less likely to occur in the gap between the blades (1j). Furthermore, by attaching a change other than the flat surface to the polished surface of the blade (1j), there is an effect that clogging is less likely to occur because there is no paper sticking.

  As shown in FIG. 12, the shape of the edge of the thick blade (1k) viewed from the blade side is not linear, but is changed to a zigzag shape, a sawtooth shape, a rectangular shape, a wave shape, etc. Use of this has the effect of increasing the security effect of shredded chips. In this case, if the thickness of the blade (1k) in the shredding direction is slightly reduced only at the edge portion, and the construction is such that it completely intersects at the time of shredding, the paper is cut out and clogging does not occur.

  As shown in FIG. 13, instead of using a metal blade (1 m) for one of a pair of blades, a hard plastic with an edge that has a groove into which a thin blade (1 m) on one side can be inserted. If a padding (13m) such as a product is used and this is used, the material cost is reduced by the amount of the pad (13m), and the safety is increased. The thinner the blade (1 m) is used, the less paper is caught in the groove. If the blade (1 m) has a structure that can be cut at both edges, it has a good sharpness and is easily shredded.

  As shown in FIG. 14, a plurality of scissors composed of a blade (1n) and a rotating shaft (2n) are not connected by a single rotating shaft (2n), but are individually independent. Is supported by a support shaft (12n), and when used, scissors completed individually with conventional technology can be used as they are, which is effective in terms of manufacturing cost and technical perfection. There is a case. The scissors may be configured to fix the blade (1n) to the cover (4n) using a support plate or the like.

  As shown in FIG. 15, the lever groove (7p) is provided not at the center but at the right and left ends. When using this, after inserting the paper, return the dominant hand a little and then push the lever (5p) to make it fine. Therefore, there is an effect that force is easily applied to the hand and shredding is easy. When the lever groove (7p) is connected to the insertion port (6p), there is an effect that the insertion port (6p) has a space, but even if it is not connected, there is also an effect that the strength of the cover (4p) is increased. Even if the lever groove (7p) is not provided, instead, the rotating shaft (2p) is extended to protrude to the outer side surface of the cover (4p), and a handle-like lever (5p) is connected to the blade (5p). (1p) may be rotated.

  As shown in FIG. 16, the fixture (9q) uses a suction cup, a magnet, a double-sided tape, a metal fitting, a screw, and the like. When this is used, it is selected according to the installation location. When there is no fixture (9q), the lever (5q) is pushed and used while the cover (4q) is pressed with one hand.

  As shown in FIG. 17, the lever (5r) and the blade (1r) are not connected directly to the blade (1r) but via the gear (14r) connected at the end of the blade body. When the lever (5r) is rotated, the gear (14r) rotates, the front blade (1r) closes, and the paper is shredded. If the lever (5r) rotation range is too large to be troublesome, the shredder load can be reduced by the lever principle. If you want to shred thick paper or make the shredder body thin and slim It is effective for such as.

  As shown in FIG. 18, one of the pair of blades is not a vertical stripe in which thin blades (1) are vertically arranged as shown in FIG. When using a blade with a two-dimensional pattern, the other has an edge blade (1s) resembling a pad (13m) with a groove with which the blade (1s) engages. Is pushed and the lever (5s) is pushed, the paper is punched out in a lattice shape, and square shredded chips fall from the back of the blade (1s). Structurally, the blade body of Example 9 (FIG. 13) has a two-dimensional pattern in the vertical direction. Providing such a two-dimensional pattern has the effect of improving the security of shredded chips. When the shredding load is large, a gear mechanism such as that shown in Example 13 (FIG. 17) may be used, or changes may be made without aligning the protruding state of the blade (1s) to be punched or the polished surface. It is better to make it diagonal. The two-dimensional pattern can also be used as a play or advertising medium because it can create other polygons, various characters and picture shapes.

It is the perspective view which notched a part of this invention. It is the side view which notched a part of this invention. It is the figure which notched a part of this invention and was seen from right above. It is a side view partly cut away showing the method of use of the present invention. (A) shows a state in which shredded material is introduced. (B) shows the state when shredded. (C) State to dump directly without chopping. It is the perspective view which notched a part which shows Example 1 of this invention. It is a perspective view which shows Example 2 of this invention. It is the side view which notched a part which shows Example 3 of this invention. (A) is a state using a saw blade. (B) A state using a warped blade. (C) A state of using a blade approaching inward. It is the side view which notched a part which shows Example 4 of this invention. (A) is a case where one blade is supported by a support plate. (B) shows a case where one blade is supported by another support shaft. It is the figure which cuts out a part and shows it from right above which shows Example 5 of this invention. It is the figure which cut off some and showed it from right above which shows Example 6 of this invention. It is the figure which cuts off some and shows it from right above which shows Example 7 of this invention. It is the figure which notched some and showed it from right above which shows Example 8 of this invention. It is the figure which notched a part and shows it from right above which shows Example 9 of this invention. It is the figure which notched a part which shows Example 10 of this invention. (A) is the figure seen from right above. (B) is a side view. It is the perspective view which notched a part which shows Example 11 of this invention. It is the side view which notched a part which shows Example 12 of this invention. It is the side view which notched a part which shows Example 13 of this invention. It is the perspective view which notched a part which shows Example 14 of this invention.

Explanation of symbols

1, 1a, 1c, 1d, 1e, 1f, 1g, 1h, 1i, 1j, 1k, 1m, 1n, 1p, 1q, 1r, 1s blade 2, 2a, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2j, 2k, 2m, 2n, 2p, 2q, 2r, 2s Rotating shaft 3, 3h, 3i, 3n Spacer 4, 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, 4j, 4k , 4m, 4n, 4p, 4q, 4r, 4s cover 5, 5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h, 5i, 5j, 5k, 5m, 5n, 5p, 5q, 5r, 5s Lever 6 , 6a, 6b, 6c, 6d, 6e, 6f, 6g, 6h, 6i, 6j, 6k, 6m, 6n, 6p, 6q, 6r, 6s input port 7, 7a, 7b, 7h, 7i, 7j, 7k, 7m, 7n, 7p, 7s Lever groove 8, 8a, 8b, 8c, 8 , 8e, 8f, 8g, 8h, 8i, 8j, 8k, 8m, 8n, 8p, 8q, 8r, 8s Scrap 9, 9, 9c, 9d, 9e, 9f, 9g, 9h, 9i, 9j, 9k, 9m, 9n, 9q, 9r Fixing tool 10a Spring 11f Support plate 12g, 12n Support shaft 13m Padding 14r Gear

Claims (1)

  A shredder comprising a cover containing a pair of blades in which a plurality of blades are arranged and a trash can detachably provided on the cover, wherein the blades are made of paper introduced from a cover slot. A manual shredder dedicated to thin paper, which is pivotally supported on the cover by a single rotating shaft so that the lever connected to the blade body can be rotated and shredded.

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